NPE using TermVectorComponent, MoreLikeThisComponent in combination with ExactStatsCache

Details

Description

Hello,

I am getting a NPE when using the TermVectorComponent in combinition with ExactStatsCache.
I am using SOLR 6.0.0 with 4 shards in total.

This Bug is a duplicate of SOLR-8459
It was already fixed in SOLR-8459 for SOLR 5.x but it is still open in the new SOLR 6.0.0
Can you please fix it for the nes SOLR 6.0.0 as well? I already tried the patch of the 5.x bugfix on the SOLR 6.0.0 but the bug is still present.

Unfortunately a request to SOLR like "http://host/solr/corename/tvrh?q=site_url_id:74" ends up with this NPE:

69730 ERROR (qtp110456297-14) [c:SingleDomainSite_28 s:shard1 r:core_node1 x:SingleDomainSite_28_shard1_replica1] o.a.s.s.HttpSolrCall null:java.lang.NullPointerException
at org.apache.solr.handler.component.TermVectorComponent.finishStage(TermVectorComponent.java:451)
at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:426)
at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:155)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:2033)
at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:652)
at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:460)
at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:229)
at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:184)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1668)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:581)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1160)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1092)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
at org.eclipse.jetty.server.Server.handle(Server.java:518)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:308)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:244)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:246)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:156)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)
at java.lang.Thread.run(Thread.java:745)